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// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// @dart = 2.9
import 'dart:html';
import 'dart:typed_data';
import 'dart:web_gl';
import 'dart:web_gl' as gl;
import 'package:expect/minitest.dart';
// Test that WebGL is present in dart:web_gl API
final isRenderingContext = predicate((x) => x is RenderingContext);
final isContextAttributes = predicate((x) => x is Map);
main() {
group('supported', () {
test('supported', () {
expect(RenderingContext.supported, isTrue);
});
});
group('functional', () {
test('unsupported fails', () {
var canvas = new CanvasElement();
var context = canvas.getContext3d();
if (RenderingContext.supported) {
expect(context, isNotNull);
expect(context, isRenderingContext);
} else {
expect(context, isNull);
}
});
if (RenderingContext.supported) {
test('simple', () {
var canvas = new CanvasElement();
var context =
canvas.getContext('experimental-webgl') as gl.RenderingContext;
expect(context, isNotNull);
var shader = context.createShader(gl.WebGL.VERTEX_SHADER);
context.shaderSource(shader, 'void main() { }');
context.compileShader(shader);
var success =
context.getShaderParameter(shader, gl.WebGL.COMPILE_STATUS);
expect(success, isTrue);
});
test('getContext3d', () {
var canvas = new CanvasElement();
var context = canvas.getContext3d();
expect(context, isNotNull);
expect(context, isRenderingContext);
context = canvas.getContext3d(depth: false);
expect(context, isNotNull);
expect(context, isRenderingContext);
});
test('texImage2D', () {
var canvas = new CanvasElement();
var context = canvas.getContext3d();
var pixels = new Uint8List.fromList([0, 0, 3, 255, 0, 0, 0, 0, 0, 0]);
context.texImage2D(1, 1, 1, 1, 10, 10, 1, 1, pixels);
canvas = new CanvasElement();
document.body.children.add(canvas);
CanvasRenderingContext2D context2 = canvas.getContext('2d');
context.texImage2D(
1, 1, 1, 1, 10, context2.getImageData(10, 10, 10, 10));
context.texImage2D(1, 1, 1, 1, 10, new ImageElement());
context.texImage2D(1, 1, 1, 1, 10, new CanvasElement());
context.texImage2D(1, 1, 1, 1, 10, new VideoElement());
});
test('texSubImage2D', () {
var canvas = new CanvasElement();
var context = canvas.getContext3d();
var pixels = new Uint8List.fromList([0, 0, 3, 255, 0, 0, 0, 0, 0, 0]);
context.texSubImage2D(1, 1, 1, 1, 1, 10, 10, 1, pixels);
canvas = new CanvasElement();
document.body.children.add(canvas);
CanvasRenderingContext2D context2 = canvas.getContext('2d');
context.texSubImage2D(
1, 1, 1, 1, 1, 10, context2.getImageData(10, 10, 10, 10));
context.texSubImage2D(1, 1, 1, 1, 1, 10, new ImageElement());
context.texSubImage2D(1, 1, 1, 1, 1, 10, new CanvasElement());
context.texSubImage2D(1, 1, 1, 1, 1, 10, new VideoElement());
});
test('getContextAttributes', () {
var canvas = new CanvasElement();
var context = canvas.getContext3d();
var attributes = context.getContextAttributes();
expect(attributes, isNotNull);
expect(attributes, isContextAttributes);
expect(attributes['alpha'], isBoolean);
expect(attributes['antialias'], isBoolean);
expect(attributes['depth'], isBoolean);
expect(attributes['premultipliedAlpha'], isBoolean);
expect(attributes['preserveDrawingBuffer'], isBoolean);
expect(attributes['stencil'], isBoolean);
});
}
});
}
final isBoolean = predicate((v) => v == true || v == false);